Number
363
- Positive
- Odd
- Composite
- 3 digits
363 is an odd 3-digit integer and a composite number. It has 6 divisors and a digital root of 3.
Number properties
ParityOddnot divisible by 2
SignPositive
PrimalityComposite
Absolute value363
Digit count3
Digit sum12
Digital root3repeated digit sum
PalindromicYesreads the same backwards
Happy numberNosquared-digit sums reach 1
Harshad numberNodivisible by its own digit sum
Factors & divisors
Prime factorisation3 × 11^2
Distinct prime factors23, 11
Number of divisors6
Sum of divisors σ(n)532
Aliquot sum169sum of the proper divisors
ClassificationDeficientthe aliquot sum is less than the number
Euler's totient φ(n)220integers below n that share no factor with it
SquarefreeNohas a repeated prime factor
All divisors1, 3, 11, 33, 121, 3636 in total
Arithmetic
Representations
Decimal363
Binary1011010119 bits
Octal553
Hexadecimal16B
Base 36A3
Roman numeralCCCLXIII
In wordsthree hundred and sixty-three
Ordinalthree hundred and sixty-third
Scientific notation3.63 × 10^2
Engineering notation363
Nearest landmarks
Powers & multiples
363 to the power 2131,769
363 to the power 347,832,147
363 to the power 417,363,069,361
363 to the power 56,302,794,178,043
First ten multiples363, 726, 1,089, 1,452, 1,815, 2,178, 2,541, 2,904, 3,267, 3,630
Powers of twoBetween 2^8 (256) and 2^9 (512)
Divisibility tests
Divisible by 2No, remainder 1
Divisible by 3Yes
Divisible by 4No, remainder 3
Divisible by 5No, remainder 3
Divisible by 6No, remainder 3
Divisible by 7No, remainder 6
Divisible by 8No, remainder 3
Divisible by 9No, remainder 3
Divisible by 10No, remainder 3
Divisible by 11Yes
Divisible by 12No, remainder 3
Divisible by 100No, remainder 63
Collatz (3n + 1) trajectory
Steps to reach 145the total stopping time
Reaches 1Yesthe Collatz conjecture says every positive integer does, but it is unproven
First steps363 → 1,090 → 545 → 1,636 → 818 → 409 → 1,228 → 614 → 307 → 922 → …
Last steps… → 5 → 16 → 8 → 4 → 2 → 1
As a percentage & fraction
As a percentage36,300%
363% as a decimal3.63
363% of 100363
363% of 1,0003,630
As a fraction of 100363/100
Read another way
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Derived from 363
Other readings
Also reads as
#336633 (colour)
- #336633
- Green
- Dark
- Nearest: Dark olivegreen
#336633 is a green with RGB values 51, 102, 51 and HSL 120°, 33%, 30%. It is a dark colour, so white text on it reaches 6.8:1 contrast (AA for normal text). The nearest named colour is Dark olivegreen.
Colour values
#336633#336633
HEX#336633
HEX (short)#363
RGBrgb(51, 102, 51)
RGB (0–1)0.2, 0.4, 0.2
RGB percentages20%, 40%, 20%
HSLhsl(120, 33.3%, 30%)
HSV / HSBhsv(120, 50%, 40%)
CMYK50%, 0%, 50%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,368,499
CSS custom property--colour: #336633;
Brightness & contrast
Relative luminance0.10446WCAG 2.x, 0 is black and 1 is white
Perceived brightness84.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.8:1
Contrast with white6.8:1WCAG normal text: AA
Contrast with black3.09:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#CC99CC
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.8:1WCAG large text: AAA
Contrast with black, large text3.09:1WCAG large text: AA
Named colours
Hue familygreen
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#663366
Analogous#4D6633, #33664D
Triadic#333366, #663333
Split complementary#4D3366, #66334D
Tetradic#334D66, #663366, #664D33
Tints, shades & saturation
Channel breakdown
R51
G102
B51
Red51 (20%)
Green102 (40%)
Blue51 (20%)
Hue120°
Saturation (HSL)33.33%
Lightness30%
Dominant channelGreen
Hex per channelR 33 · G 66 · B 33
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Harmonies
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